Review of the planthopper genus Amasha Medler (Hemiptera: Fulgoromorpha: Flatidae: Phyllyphantini) with description of one new species from China

摘要

The genus Amasha Medler is reviewed with description of a new species, Amasha haina, sp. nov., from China. All known species of the genus are also redescribed and illustrated, and the male genitalia of A. inepta Medler is described for the first time.A key to all species is provided. Phyllyphantini is a small tribe of the subfamily Flatinae and consists of only ten genera from the Oriental Region (Medler 1992). This tribe was originally established by Melichar (1923) as a subtribe of Flatini, characterized by the conical shape of the head. Some species are widespread and reach high densities on a variety of economically important plants. Geisha distinctissima (Walker) and Salurnis marginella (Guerin-Meneville) are very common in southern China andeven in some northern provinces which belong to the Palaearctic Region, and they are harmful to tea plant, orange, mulberry, pear, as well as other crops. Chou (1985) found that G. distinctissima did much damage to orange and tea plant in Guangxi and Zhejiang provinces, China.